Check manual page of ibm_svc_systemstats.diskio

Reports the disk throughput for Drives, MDisks and VDisks of an IBM
SVC / V7000 device in total in bytes per second.

The check is only for reporting and returns always OK.

Please note: You need the Special Agent agent_ibmsvc to retrieve the monitoring
data from the device. Your monitoring user must be able to SSH to the device
with SSH Key Authentification. Please exchange SSH key. The Special Agent itself
can be configured by WATO.